WO1994005347A1 - Pompe de catheter - Google Patents

Pompe de catheter Download PDF

Info

Publication number
WO1994005347A1
WO1994005347A1 PCT/SE1993/000690 SE9300690W WO9405347A1 WO 1994005347 A1 WO1994005347 A1 WO 1994005347A1 SE 9300690 W SE9300690 W SE 9300690W WO 9405347 A1 WO9405347 A1 WO 9405347A1
Authority
WO
WIPO (PCT)
Prior art keywords
propeller
pump according
drive
sleeve
cable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/SE1993/000690
Other languages
English (en)
Inventor
Öyvind REITAN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE69331713T priority Critical patent/DE69331713T2/de
Priority to EP93919761A priority patent/EP0768900B1/fr
Priority to AT93919761T priority patent/ATE214294T1/de
Priority to JP50711594A priority patent/JP3278160B2/ja
Priority to DK93919761T priority patent/DK0768900T3/da
Publication of WO1994005347A1 publication Critical patent/WO1994005347A1/fr
Priority to US08/387,941 priority patent/US5749855A/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/40—Details relating to driving
    • A61M60/403—Details relating to driving for non-positive displacement blood pumps
    • A61M60/408—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being mechanical, e.g. transmitted by a shaft or cable
    • A61M60/411—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being mechanical, e.g. transmitted by a shaft or cable generated by an electromotor
    • A61M60/414—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being mechanical, e.g. transmitted by a shaft or cable generated by an electromotor transmitted by a rotating cable, e.g. for blood pumps mounted on a catheter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/10—Location thereof with respect to the patient's body
    • A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
    • A61M60/126—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel
    • A61M60/13—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel by means of a catheter allowing explantation, e.g. catheter pumps temporarily introduced via the vascular system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/20—Type thereof
    • A61M60/205—Non-positive displacement blood pumps
    • A61M60/216—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller
    • A61M60/237—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller the blood flow through the rotating member having mainly axial components, e.g. axial flow pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80—Constructional details other than related to driving
    • A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
    • A61M60/804—Impellers
    • A61M60/806—Vanes or blades
    • A61M60/808—Vanes or blades specially adapted for deformable impellers, e.g. expandable impellers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80—Constructional details other than related to driving
    • A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
    • A61M60/818—Bearings
    • A61M60/825—Contact bearings, e.g. ball-and-cup or pivot bearings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/10—Location thereof with respect to the patient's body
    • A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
    • A61M60/126—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel
    • A61M60/148—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices

Definitions

  • the present invention relates to a catheter pump intended for implantation and comprising an elongated sleeve through which a drive cable passes, the external end of which cable is connectable to an external drive source, the pump further comprising a drive rotor located in proximity to the inner end of the drive cable.
  • heart failure results in the heart pumping less blood to the body than that which the body requires in order to maintain vital functions.
  • Reduced heart muscle function can have many causes. The most usual is due to a heart infarction which can lead to temporary or chronic failure. Examples of other causes of chronic or temporary failure are myocarditis (heart muscle inflammation) , cardiomyopathy, metabolic diseases, poisonings, arrhythmia (irregular pulse) and many others. Also worth mentioning is temporary failure in patients after heart surgery and problems when stopping heart-lung-machine treatment.
  • PV hereby represents the pressure work per beat whilst 1/2 m v 2 denotes the blood acceleration work per beat.
  • the heart generates approximately one joule per beat.
  • a typical failure situation is when the blood pressure sinks to 80/50 and the beat volume to 30 ml. In order to compensate for this the heart increases its frequency to, for example, 130 beats/minute. Nevertheless, the heart work is only approximately 25-50% of the normal and this corresponds to heart power of approximately 0,25-0,5 Watt.
  • Hemopu p As pump principle the pump makes use of a rotary Archimedes screw which, via a metal cable in a catheter, is driven by an external electric motor. The catheter is inserted in the groin and introduced into the arteria femoralis with help of a small surgical insertion. It is thereafter led up into the aorta and a flexible needle is introduced through the aorta valves and sucks out blood from the left chamber to the aorta.
  • the catheter has been made as narrow as possible.
  • the needle in the left chamber has a diameter of approximately 7 mm and the Archimedes screw a diameter of around 3 mm.
  • the present invention thus relates to a catheter pump intended for implantation and comprising an elongated sleeve through which a drive cable passes, the external end of which cable is connectable to an external drive source, the pump further comprising a drive rotor located in proximity to the inner end of the drive cable.
  • the pump is characterized in that said drive rotor is in the form of an outwardly-foldable propeller. Because of the outwardly-foldable propeller, the catheter can be made very narrow, which is advantageous during introduction into the blood stream, but nevertheless provides a powerful flow effect in its outwardly-folded condition.
  • the catheter which should have a maximum diameter of 3-
  • the propeller can be placed in an arbitrary region of the aorta and can also be introduced into the left chamber.
  • the catheter In order to avoid the propeller, which can have a diameter of 1-2 cm, damaging the aorta, as described in the following the catheter should be provided with a lattice or bars which shield the propeller.
  • the bars When introduced into the left chamber, the bars can be provided with an elastic rubber sheath which prevents damage to the vital parts of the heart and which can also increase the pressure effect.
  • the pump or parts thereof In order to avoid thromboembolismic complications, the pump or parts thereof can be heparinized.
  • the pump is primarily intended for use in failure of the left chamber, but it is also conceivable that it be used for failure in the right chamber. It is conceivable that the pump be introduced via the vein system in the neck and into the right chamber or possibly in the arteria pulmonalis and thus with reversed rotational direction.
  • the above mentioned bars are suitably in the form of an expandable part adjacent the propeller.
  • This part can be in the form of filaments extending in the longitudinal direction of the sleeve.
  • the forward ends of these filaments are united at a common attachment which is arranged to be able to be displaced towards the propeller during the formation of a filament cage around the propeller. Said movement can be achieved through the attachment being attached to the drive cable, which is accordingly arranged to be axially displaceable for expansion of the filament cage.
  • Adjustment of the propeller also suitably takes place with help of the drive cable. It can thus be arranged to be folded out with the help of the drive cable, hence the drive cable being axially displaceable.
  • the drive cable can be in the form of a compact cable.
  • it can be in the form of an inner core with an outer sleeve axially displaceable with respect to the core.
  • a link mechanism can be attached to the propellor and to the core and outer sleeve respectively of the drive cable, the mechanism having such a construction that the propeller is folded outwardly by a relative sliding between the core of the cable and the outer sleeve.
  • the expandable part can be surrounded by a sleeve or a tube of an elastic material such as rubber or similar.
  • the drive cable is arranged to be rotated at a number of revolutions which is less than 10 000 rpm, preferably in the order of 3 - 5 000 rpm.
  • the propeller In its folded out condition, the propeller should have a work diameter of 10-20 mm, preferably about 15 mm.
  • the propeller is suitably arranged to be subjected to an effective pumping power in the order of 0,25-1 Watt, preferably about 0,5 Watt.
  • the propeller consists of a number of propeller blades individually carried on the drive axle which are arranged to be folded outwardly to their operational position due to centrifugal and/or pumping force during rotation of the drive axle.
  • the propeller blades are hereby suitably made to abut a propeller support mounted on the drive axle when the propeller blades are in their operational position.
  • the propeller blades can be locked between a propeller support mounted on the drive axel and a sleeve rotatable with the drive axle.
  • ADVANTAGES OF THE INVENTION - The entire construction can be made very thin for insertion and removal respectively, maximum diameter 3- 5 mm.
  • the pump can reverse its direction of rotation.
  • Fig. 1 is intended to illustrate the external dimensions of a catheter pump according to a first embodiment of the invention (scale 5:1).
  • Fig. 2 shows the same pump in its operational position.
  • Figs. 3-6 show sections according to lines III-III, IV-IV,
  • Fig. 7 schematically shows a second embodiment of the invention in its operational position.
  • Fig. 8 shows a part of Fig. 7 in rest position.
  • Fig. 9 shows a part of a third embodiment in its rest position.
  • Fig. 10 shows the part according to Fig. 9 in its operational position.
  • a first embodiment of the catheter pump according to the invention is shown in Fig. 2 in its operational position.
  • the pump comprises innermost a drive cable 1 which consists of an inner part la and an outer part lb.
  • the drive cable 1 is surrounded by an outer sleeve 2 which at its forward end merges into a cylindrical region 3 together with a plurality of filaments 4.
  • the drive cable 1 terminates with a round nipple 5 which serves both as a bearing and as an attachment for the filaments 4.
  • a link mechanism 6 an outwardly foldable propeller 7 is secured to the inner drive axle la.
  • the link mechanism 6 is schematically shown and can be modified in various ways in order to achieve the desired function.
  • the dashed lines 8 indicate that the lattice cage formed by the filaments 4 can be surrounded by an outer elastic sleeve of, for example, rubber.
  • the filaments 4 have been expanded to the position shown in Fig. 2 by means of a relative displacement between the drive cable 1 and its sleeve 2.
  • the propeller 7 has been folded outwards with help of the link mechanism 6 by means of a relative displacement between the two parts la and lb of the drive cable 1.
  • Fig. 3 shows a section along line III-III in Fig. 2, i.e. a section through the bearing nipple 5 and the attachment part 9 of the filaments 4.
  • Fig. 4 shows a section along line IV-IV in Fig. 2 and here it can be seen how the inner axle la can be surrounded by four filaments 4. This number can of course be varied.
  • Fig. 5 shows a section along line V-V in Fig. 2 and illustrates how the inner axle la is surrounded by an outer axle lb and the cylindrical extension 3 of the sleeve 2. These are all surrounded by the lattice cage formed by the filaments 4.
  • Fig. 6 shows a section along line VI-VI in Fig. 2 and illustrates how the inner axle la is surrounded by the outer axle lb and the sleeve 2.
  • Fig. 7 and 8 schematically show a simplified embodiment of the catheter pump according to the invention. In principle, however, it corresponds to the embodiment according to Figs. 1-6, and thus the same figure reference numeral have been used for corresponding parts, though with the addition of a prime.
  • the drive axle 1' here consists of a single solid part surrounded by the sleeve 2' .
  • the filaments 4' are in the same manner as described above secured to both the sleeve 2' and to a common forward section 9', which also serves as a bearing for the bearing nipple 5'.
  • the main difference with respect to the above described embodiment is that the blades or propeller 7' are here individually carried on a support part 10'.
  • Fig. 8 the blades are shown in their inwardly folded position. As soon as rotation is started they are automatically folded outwardly to their operational position shown in Fig. 7. This occurs due to both the centrifugal force and because the blades are so shaped that due to the pumping forces they are driven outwardly to their operational position. Folding in of the blades 7' can thus take place by reversing the rotational direction of the axle 1'.
  • Figs. 9 and 10 show a further modification of the catheter pump according to the invention.
  • This embodiment also corresponds to the above described, and so the same figure reference numerals have been used for corresponding components, though with the addition of a double prime.
  • the inner drive axle is thus denoted by 1'', a propeller support by 10'' and the propeller by 7''.
  • the inner drive axle 1'' is surrounded by an outer sleeve 2''.
  • a rotating displaceable cylinder 11" has been added which slides against the forward face of the sleeve 2'' which is provided with a slide bearing 12''.
  • the propeller 7'' is carried on the inner drive axle 1" by means of a bearing or link mechanism 6".

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Cardiology (AREA)
  • Public Health (AREA)
  • Mechanical Engineering (AREA)
  • Vascular Medicine (AREA)
  • External Artificial Organs (AREA)
  • Reciprocating Pumps (AREA)
  • Prostheses (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Flexible Shafts (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

L'invention concerne une pompe de cathéter conçue pour une implantation et comprenant un manchon allongé (2) à travers lequel passe un câble d'actionnement (1), dont l'extrémité extérieure se relie à une source d'actionnement extérieure, la pompe comprenant, de plus, un rotor d'actionnement situé à proximité de l'extrémité intérieure dudit câble. L'invention est caractérisée par le fait que le rotor d'actionnement se présente sous la forme d'une hélice se repliant vers l'extérieur (7) et entourée, de préférence, par une partie expansible (4) du manchon.
PCT/SE1993/000690 1992-09-02 1993-08-19 Pompe de catheter Ceased WO1994005347A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE69331713T DE69331713T2 (de) 1992-09-02 1993-08-19 Katheterpumpe
EP93919761A EP0768900B1 (fr) 1992-09-02 1993-08-19 Pompe de catheter
AT93919761T ATE214294T1 (de) 1992-09-02 1993-08-19 Katheterpumpe
JP50711594A JP3278160B2 (ja) 1992-09-02 1993-08-19 カテーテルポンプ
DK93919761T DK0768900T3 (da) 1992-09-02 1993-08-19 Kateterpumpe
US08/387,941 US5749855A (en) 1992-09-02 1995-02-27 Catheter pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9202517-0 1992-09-02
SE9202517A SE501215C2 (sv) 1992-09-02 1992-09-02 Kateterpump

Publications (1)

Publication Number Publication Date
WO1994005347A1 true WO1994005347A1 (fr) 1994-03-17

Family

ID=20387070

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1993/000690 Ceased WO1994005347A1 (fr) 1992-09-02 1993-08-19 Pompe de catheter

Country Status (9)

Country Link
US (1) US5749855A (fr)
EP (1) EP0768900B1 (fr)
JP (1) JP3278160B2 (fr)
AT (1) ATE214294T1 (fr)
DE (1) DE69331713T2 (fr)
DK (1) DK0768900T3 (fr)
ES (1) ES2170071T3 (fr)
SE (1) SE501215C2 (fr)
WO (1) WO1994005347A1 (fr)

Cited By (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997039784A1 (fr) * 1996-04-25 1997-10-30 Medtronic, Inc. Ensemble pompe intravasculaire et pontage et son procede d'utilisation
WO1999044651A1 (fr) * 1998-03-07 1999-09-10 Guenther Rolf W Pompe axiale autodeployable inserable par voie intravasculaire pour assistance cardiaque temporaire
US6889082B2 (en) 1997-10-09 2005-05-03 Orqis Medical Corporation Implantable heart assist system and method of applying same
WO2006051023A1 (fr) * 2004-11-12 2006-05-18 Abiomed Europe Gmbh Pompe a sang pliante, pouvant etre introduite par voie intravasculaire
US7125376B2 (en) 1997-10-09 2006-10-24 Orqis Medical Corporation Implantable heart assist system and method of applying same
US7393181B2 (en) 2004-09-17 2008-07-01 The Penn State Research Foundation Expandable impeller pump
US7445592B2 (en) 2004-06-10 2008-11-04 Orqis Medical Corporation Cannulae having reduced flow resistance
EP2216059A1 (fr) 2009-02-04 2010-08-11 ECP Entwicklungsgesellschaft mbH Dispositif de cathéter doté d'un cathéter et d'un dispositif d'actionnement
EP2218469A1 (fr) * 2009-02-12 2010-08-18 ECP Entwicklungsgesellschaft mbH Boîtier pour un élément fonctionnel
WO2010149393A1 (fr) * 2009-06-25 2010-12-29 Ecp Entwicklungsgesellschaft Mbh Lame compressible et expansible pour une pompe à fluides
WO2011003043A1 (fr) * 2009-07-01 2011-01-06 The Penn State Research Foundation Pompe pour le sang pourvue d'une canule extensible
EP2308422A1 (fr) * 2008-06-23 2011-04-13 Cardiobridge GmbH Pompe de cathéter pour support de la circulation
EP2338539A1 (fr) 2009-12-23 2011-06-29 ECP Entwicklungsgesellschaft mbH Dispositif de pompage doté d'un dispositif de détection
EP2347778A1 (fr) 2010-01-25 2011-07-27 ECP Entwicklungsgesellschaft mbH Pompe à fluide dotée d'un rotor radial comprimable
EP2407187A1 (fr) 2010-07-15 2012-01-18 ECP Entwicklungsgesellschaft mbH Pompe sanguine pour l'application invasive à l'intérieur d'un corps de patient
US8118724B2 (en) 2003-09-18 2012-02-21 Thoratec Corporation Rotary blood pump
EP1996252A4 (fr) * 2006-03-23 2012-11-07 Penn State Res Found Dispositif d'assistance cardiaque avec une pompe a impulseur extensible
US8617239B2 (en) 2009-05-18 2013-12-31 Cardiobridge Gmbh Catheter pump
US8690749B1 (en) 2009-11-02 2014-04-08 Anthony Nunez Wireless compressible heart pump
US8900060B2 (en) 2009-04-29 2014-12-02 Ecp Entwicklungsgesellschaft Mbh Shaft arrangement having a shaft which extends within a fluid-filled casing
US8926492B2 (en) 2011-10-11 2015-01-06 Ecp Entwicklungsgesellschaft Mbh Housing for a functional element
US8932141B2 (en) 2009-10-23 2015-01-13 Ecp Entwicklungsgesellschaft Mbh Flexible shaft arrangement
US8944748B2 (en) 2009-05-05 2015-02-03 Ecp Entwicklungsgesellschaft Mbh Fluid pump changeable in diameter, in particular for medical application
US8979493B2 (en) 2009-03-18 2015-03-17 ECP Entwicklungsgesellscaft mbH Fluid pump
US8998792B2 (en) 2008-12-05 2015-04-07 Ecp Entwicklungsgesellschaft Mbh Fluid pump with a rotor
US9028216B2 (en) 2009-09-22 2015-05-12 Ecp Entwicklungsgesellschaft Mbh Rotor for an axial flow pump for conveying a fluid
US9138518B2 (en) 2011-01-06 2015-09-22 Thoratec Corporation Percutaneous heart pump
US9217442B2 (en) 2010-03-05 2015-12-22 Ecp Entwicklungsgesellschaft Mbh Pump or rotary cutter for operation in a fluid
US9314558B2 (en) 2009-12-23 2016-04-19 Ecp Entwicklungsgesellschaft Mbh Conveying blades for a compressible rotor
US9328741B2 (en) 2010-05-17 2016-05-03 Ecp Entwicklungsgesellschaft Mbh Pump arrangement
US9339596B2 (en) 2009-12-23 2016-05-17 Ecp Entwicklungsgesellschaft Mbh Radially compressible and expandable rotor for a fluid pump
US9358329B2 (en) 2012-07-03 2016-06-07 Thoratec Corporation Catheter pump
US9416783B2 (en) 2009-09-22 2016-08-16 Ecp Entwicklungsgellschaft Mbh Compressible rotor for a fluid pump
US9421311B2 (en) 2012-07-03 2016-08-23 Thoratec Corporation Motor assembly for catheter pump
US9446179B2 (en) 2012-05-14 2016-09-20 Thoratec Corporation Distal bearing support
US9512852B2 (en) 2006-03-31 2016-12-06 Thoratec Corporation Rotary blood pump
US9545468B2 (en) 1999-09-03 2017-01-17 Maquet Cardiovascular Llc Guidable intravascular blood pump and related methods
US9603983B2 (en) 2009-10-23 2017-03-28 Ecp Entwicklungsgesellschaft Mbh Catheter pump arrangement and flexible shaft arrangement having a core
US9611743B2 (en) 2010-07-15 2017-04-04 Ecp Entwicklungsgesellschaft Mbh Radially compressible and expandable rotor for a pump having an impeller blade
US9771801B2 (en) 2010-07-15 2017-09-26 Ecp Entwicklungsgesellschaft Mbh Rotor for a pump, produced with a first elastic material
US9867916B2 (en) 2010-08-27 2018-01-16 Berlin Heart Gmbh Implantable blood conveying device, manipulating device and coupling device
US9872947B2 (en) 2012-05-14 2018-01-23 Tc1 Llc Sheath system for catheter pump
US9974893B2 (en) 2010-06-25 2018-05-22 Ecp Entwicklungsgesellschaft Mbh System for introducing a pump
EP2308524B1 (fr) 2007-10-08 2018-09-05 Ais Gmbh Aachen Innovative Solutions Dispositif de cathéter
US10107299B2 (en) 2009-09-22 2018-10-23 Ecp Entwicklungsgesellschaft Mbh Functional element, in particular fluid pump, having a housing and a conveying element
US10172985B2 (en) 2009-08-06 2019-01-08 Ecp Entwicklungsgesellschaft Mbh Catheter device having a coupling device for a drive device
US10391278B2 (en) 2011-03-10 2019-08-27 Ecp Entwicklungsgesellschaft Mbh Push device for the axial insertion of an elongate, flexible body
CN110290818A (zh) * 2017-02-13 2019-09-27 卡迪奥布里奇有限公司 具有用于引入动脉血管系统的泵头的导管泵
US10561773B2 (en) 2011-09-05 2020-02-18 Ecp Entwicklungsgesellschaft Mbh Medical product comprising a functional element for the invasive use in a patient's body
EP3777948A1 (fr) * 2011-01-05 2021-02-17 Tc1 Llc Logement de turbine pour pompe cardiaque percutanée
US11077294B2 (en) 2013-03-13 2021-08-03 Tc1 Llc Sheath assembly for catheter pump
US11219756B2 (en) 2012-07-03 2022-01-11 Tc1 Llc Motor assembly for catheter pump
US11602627B2 (en) 2018-03-20 2023-03-14 Second Heart Assist, Inc. Circulatory assist pump
CN118343709A (zh) * 2024-04-28 2024-07-16 南华大学 一种注射型hap及其制备方法和应用
US12171993B2 (en) 2018-07-30 2024-12-24 Cardiovascular Systems, Inc. Intravascular blood pump with external motor and centrifugal force-driven expansion of impeller blades and/or expandable and collapsible impeller housing
US12350483B2 (en) 2016-07-21 2025-07-08 Tc1 Llc Fluid seals for catheter pump motor assembly
US12478774B2 (en) 2014-04-15 2025-11-25 Tc1 Llc Catheter pump with off-set motor position
US12491356B2 (en) 2018-03-20 2025-12-09 Second Heart Assist, Inc. Circulatory assist pump
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CN110290818B (zh) * 2017-02-13 2021-11-23 卡迪奥布里奇有限公司 具有用于引入动脉血管系统的泵头的导管泵
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US11602627B2 (en) 2018-03-20 2023-03-14 Second Heart Assist, Inc. Circulatory assist pump
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JPH08500512A (ja) 1996-01-23
DE69331713T2 (de) 2002-11-28
EP0768900A1 (fr) 1997-04-23
EP0768900B1 (fr) 2002-03-13
SE501215C2 (sv) 1994-12-12
SE9202517L (sv) 1994-03-03
SE9202517D0 (sv) 1992-09-02
ATE214294T1 (de) 2002-03-15
US5749855A (en) 1998-05-12
JP3278160B2 (ja) 2002-04-30
DE69331713D1 (de) 2002-04-18
ES2170071T3 (es) 2002-08-01
DK0768900T3 (da) 2002-07-08

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